CVE-2021-27411

Published: May 3, 2022Modified: Jun 17, 2026

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Exploitability: 3.9 / Impact: 2.5

Source: NVD

Description

Micrium OS Versions 5.10.1 and prior are vulnerable to integer wrap-around in functions Mem_DynPoolCreate, Mem_DynPoolCreateHW and Mem_PoolCreate. This unverified memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as very small blocks of memory being allocated instead of very large ones.

Affected (1)

Products: Silabs: Micrium Os

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Silabs Micrium Os	Up to 5.10.1

Related CWEs

Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (4)

https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04

Source: ics-cert@hq.dhs.gov

Third Party AdvisoryUS Government Resource

https://www.silabs.com/developers/micrium-os

Source: ics-cert@hq.dhs.gov

ProductVendor Advisory

https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party AdvisoryUS Government Resource

https://www.silabs.com/developers/micrium-os

Source: af854a3a-2127-422b-91ae-364da2661108

ProductVendor Advisory

Timeline

No history available yet.